Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
  • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D201/00—Coating compositions based on unspecified macromolecular compounds
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
  • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
  • B05D3/0218—Pretreatment, e.g. heating the substrate

Definitions

• the hardening of the dissolved resin after the application of the coating is effected by first raising, or maintaining, the temperature so as to cause the complete evaporation of the solvent, and then increasing the temperature so as to eifect the partial or complete hardening of the artificial resm.
• compositions prepared by dissolving induratable artificial resins in tar oil, with or without additions, are applied by brushing, spraying, or by dipping the heated article in the composition.
• Additional fillers may consist of organic substances of high boiling point, such as anthracene oils, since, owing to their high boiling pointabove 300 C.-they do not vaporize completely during the application process, but are still present in the hardened final coating, and act favorably by increasing its elasticity.
• tar oils Another advantage of employing tar oils consists in that the flash point is so high as to preclude risk in the performance of the process. Since the boiling points of tar oil range between about 180 and 360 C., whilst the hardening temperatures of the artificial resins lie between about 80 and 300 C., it is possible to select tar oils which boil within a range approximating to the temperature limits within which the hardening of the artificial resins proceeds with the requisite velocity. In this manner it is possibha not only to prevent the formation of bubbles, which is a source of considerable difiiculties in other methods of application, but also to avoid treatment at difierent temperatures, such as inevitable in the case of other solvents.
• the temperature of the tube may be approxi-v mately the same, during the application oi 'the artificial resin and tar oil compositions, as'that required for the hardening stage, provided merely that the optimum hardening temperature be borne in mind when selecting the tar oil to be employed, or conversely that, in the case of tar oils with a given range of boiling points, the hardening temperatures of the resins employed approximately coincide with said range of boiling points.
• a process for applying a protective coating to metallic articles which comprises applying a composition containing a solution of induratable artificial resins in tar oil and an organic substance such as anthracene boiling above 300 C., to a metallic article whilst heating.
• a process for applying a protective coating to metallic articles which comprises heating the metallic article and then applying a composition containing a solution of induratable artificial resins in tar oil and an organic substance such as anthracene boiling above 300 C. to said metallic article.
• a process for applying a protective coating to metallic articles which comprises applying a composition containing a solution of induratable artificial resins in tar oils having a range o1 boiling points approximately corresponding to the temperature at which the transformation of the artificial resin into the insoluble and infusible form proceeds at suitable velocity and an organic substance such as anthracene boiling above 300 C., to a metallic article whilst heating.
• a process for applying a protective coating to metallic articles which comprises heating the metallic article and then applying a composition containing a solution of induratable artificial resins in tar oils having a range of boiling points approximately corresponding to the temperature at which the transformation of the artificial resin inio the insoluble and infusible form proceeds at suitable velocity and an organic substance such as anthracene boiling above 300 C. to said metallic article.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Wood Science & Technology (AREA)
• Chemical & Material Sciences (AREA)
• Materials Engineering (AREA)
• Organic Chemistry (AREA)
• Paints Or Removers (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=6318088

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (1)

• 0
  • NL NL28689D patent/NL28689C/xx active
• 1930
  • 1930-05-03 DE DE1930595456D patent/DE595456C/de not_active Expired
• 1931
  • 1931-03-24 GB GB9053/31A patent/GB368538A/en not_active Expired
  • 1931-03-27 US US525875A patent/US1932699A/en not_active Expired - Lifetime

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